The number of Replies to Minor Queries waiting for insertion, compels us to omit our usual Notes on Books, and a number of very interesting communications.
Sch. T. C. D., who has pointed out a curious error in Disraeli's Curiosities of Literature, has been anticipated by Mr. Bolton Corney in his Curiosities of Literature Illustrated, p. 144. et seq.
A. B. R. Yes, as at present advised.
S. W. L. is assured that the communications to which he refers interest as large and intelligent a class of readers, as will feel an interest in the communication which he proposes to forward, and which we shall gladly receive.
C. D. W. T. (Jun.) is thanked: but the edition is too well known to all the Communicators, to require that he should be troubled upon the subject.
J. H. W.'s communication shall have early insertion. Our arrangements would not admit of its appearing this week.
Tyro. The anonymous Life of Queen Anne inquired after (Vol. vii., p. 108.) is a different work to that of Boyer's, and does not contain one-third the quantity of letter-press. The descriptive matter of the Metallick History has been copied from Boyer, although the plates have been re-engraved.
Mr. Brown's Letter on Mr. Archer's Services to Photography; G. H. on Difficulties in the Wax-Paper Process; and F. M. L. on the Albumen Process, are unavoidably postponed until next week.
A. B. Your suggestions will be attended to in the Notes on Photography.
Enquirer (Edinburgh). If you follow the instructions given in our former Numbers on the Collodion Process, you must meet with success. The deposit in negatives is often much blackened by adding an increased proportion of acetic acid to the pyrogallic solution—say two drachms to the ounce, so that the solution shall be one-fifth of acetic acid. A long exposure often weakens a negative; and, during the recent fall of snow, thirty seconds has produced an effective printing negative, whilst three minutes' exposure has given a negative picture so transparent as to be useless.